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E. H. RICHARDS.

MECHANICAL MOVEMENT.

No'. 340,247. 5 ,6 Patented Apr. 2o, 1886.

9J @El UNITED STATES PATENT OFFICE.

FRANCIS H. RICHARDS, OF SPRINGFIELD, MASS., ASSIGNOR OF ONE-HALF TO THE PRATT 8D WHITNEY COMPANY, OF HARTFORD, CONN.

MECHANICALNIOVEMENT.

SPECIFICATION forming part of Letters Patent No. 340,247, dated April 20. 1886.

Application filed October 29. 1R85. Serial No. 181,212.

T0 all whom it may concern.-

Be it known that I, FRANCIS H. RICHARDS, a citizen of the United States,4 residing at Springfield, 'in the county of Hampden, State of Massachusetts, have invented certain new and usefullmprovementsin Mechanical Movements, of which the following is a specilcation.

This invention relates to mechanical movements for actuating slides, -the object being to provide a mechanism adapted to operate a pair of slides in the manner hereinafter set forth.

To this end the invention consists in the combinations hereinafter described and claimed.

In the drawings accompanying and forming a part of this specification, Figure 1 is a side view of a mechanical movement embodying my invention. Fig. 2 is a top view of the same. Figs. 3, 4, 5, 6, and 7 are diagrams illustrating, the operation of the mechanism.

Similarcharacters designate like parts in all the figures.

The several operative parts of my newlyinvented mechanical movement are supported by a simple frame-work, A. This frame has bearings for the driving-shaft S, carrying a cam, C, adapted to impart a vibratory motion to a lever, L, which is pivot-ed at 3 to said frame. The lever L is furnished with the usual roller, 2, running against cam C. and with a spring, 11, for moving it toward the cam. 1t is also furnished with another roller, (or pin,) 4, which works against the cam-arm 5 of the angle-lever N, whose other arm, 6, is connected by link 7 to the shortstroke slide D. The anglelever is pivoted on a stud, 8, tixed in the frame. It is operated in one direction. by the roller 4 and in the other by spring 9. Lever L is connected by link l() to the long-stroke slide B, which, as well as slide D, is held in place by cap l2. Arm 5 is formed at about the middle ol' one side into a cam, 15, which is so shaped as to impart when operated by roller 4 a movement through the rocker and link `7 to slide D only during the ymiddle part of the stroke of lever L. This particular mode of operation will be fully understood from the series of diagrams Figs. 3 to 7. `In Fig. 3both slides (No model.)

stand at the same end of their respective strokes, corresponding, as shown, to one of the reference-lines a a. The roller 4 now stands at some distance from cam 15. On noWv swinging lever L on pivot 3 slide B is moved forward (upward in the drawings) and the roller 4 is brought close to cam 15, as shown in Fig. 4, where slide D is shown in the same position as before. On continuing the mobo tion of lever L roller4 acts on cam 15 to move ,slide D simultaneously with the movement of slide B. In Fig. 5 the parts are shown as situated when slide D is at mid-stroke; in Fig. 6, as situated when it has competed its stroke. In Fig. 7 they are shown as when slide B has moved still farther to the end of its'stroke, slide D remaining as in Fig. 6. Th us, as I have described, there are two slides, B and D, the first operated directly and the 7.3 last indirectly from the same lever L, slide B having a long stroke and slide D a short stroke begun and completed during thestroke of said slide B.

It will be understood that other means than -cam C, as, for instance, an ordinary crank and connecting rod, may be employed for operating lever L; also, that the proportions of the several parts are capable of modification in various ways and degrees, after the manner S0 of machines in general, withoutdeparting from the spirit of my invention.

ln another application, Serial No. 153,234, tiled January 19, 1R85, I have shown this my present invention operating as a part of a machine for packingfand banding envelopes; but it is capable ot' other applications.

Having thus described my invention, I claim- The combination, in a mechanical move- 9o ment, of a pair ot'slides, as B D, lover L, eonnected to slide B and having a roller or pin,

4, a cam-arm pivoted substantially as described and operated by said roller or pin, connections from said arm to slide D, and actuating mechanism, substantially as described, operating lever L, substantially as set forth.

FRANCIS H. RICHARDS. 

